CVE-2026-23223
HIGH
MEDIUM
Priority: 0.01
BB Relevance:
41/100
Published: 2026-02-18
Modified: 2026-11-05
First seen: 2026-11-05
Status: active
Attack Surface
Low Complexity
No Interaction
Conf. Impact
Integ. Impact
CVSS Vector Breakdown
AV:
Local
AC:
Low
PR:
Low
UI:
None
S:
Unchanged
C:
High
I:
High
A:
High
Description
In the Linux kernel, the following vulnerability has been resolved: xfs: fix UAF in xchk_btree_check_block_owner We cannot dereference bs->cur when trying to determine if bs->cur aliases bs->sc->sa.{bno,rmap}_cur after the latter has been freed. Fix this by sampling before type before any freeing could happen. The correct temporal ordering was broken when we removed xfs_btnum_t.
Weakness Classification (1)
Affected Software (6)
| Vendor | Product | Version |
|---|---|---|
| Linux | Linux | ec793e690f801d97a7ae2a0d429fea1fee4d44aa < 1d411278dda293a507cb794db7d9ed3511c685c6 |
| Linux | Linux | ec793e690f801d97a7ae2a0d429fea1fee4d44aa < ed82e7949f5cac3058f4100f3cd670531d41a266 |
| Linux | Linux | ec793e690f801d97a7ae2a0d429fea1fee4d44aa < ba5264610423d9653aa36920520902d83841bcfd |
| Linux | Linux | ec793e690f801d97a7ae2a0d429fea1fee4d44aa < 1c253e11225bc5167217897885b85093e17c2217 |
| Linux | Linux | 6.9 |
| linux | linux_kernel | 6.9 – 6.12.72 |